HOW TO SHARPEN FLESH TONES IN CMYK

When you're sharpening CMYK images, the toughest areas to sharpen are often the flesh tones. Usually, because of the soft nature of skin, you'll need a lot of sharpening, which can introduce noise and color shifts, particularly in flesh tone areas. One tip that's often used to combat this is to apply your sharpening to just the Cyan channel in the Channels palette in images where flesh tone is the focal point (such as in portraits).